private void _loadTraceFileButton_Click(object sender, RoutedEventArgs e)
{
// Check input first
string mapFileName = Properties.Settings.Default.MapFileName;
string trace1FileName = Properties.Settings.Default.Trace1FileName;
string trace2FileName = Properties.Settings.Default.Trace2FileName;
if (string.IsNullOrWhiteSpace(trace2FileName))
{
trace2FileName = trace1FileName;
}
if (!File.Exists(mapFileName) || !File.Exists(trace1FileName) || !File.Exists(trace2FileName))
{
MessageBox.Show("File(s) not found.", "Error", MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
// Reset lists possibly containing data from previous loads
_imageFileNames.Clear();
_mapFiles.Clear();
// Delete all drawable elements
_functionNodes = new List <FunctionNode>();
_functionNodeNameAnnotations = new List <AnnotationElement>();
_entryArrows = new List <EntryArrow>();
_diffAreas = new List <DiffArea>();
_renderPanel.Children.Clear();
// Local function to create function nodes (called in several places)
double nextNodeX = 20;
FunctionNode CreateFunctionNode(string functionName)
{
// Create new node
FunctionNode node = new FunctionNode(functionName, new Point(nextNodeX, 20));
nextNodeX += node.Width;
_functionNodes.Add(node);
return(node);
};
// Regex for removing extensions from image names
Regex imageNameRegex = new Regex("\\.(dll|exe)(\\..*)?", RegexOptions.Compiled | RegexOptions.IgnoreCase);
// Load map files
string mapFileImageName = System.IO.Path.GetFileNameWithoutExtension(mapFileName).ToLower();
_mapFiles.Add(imageNameRegex.Replace(mapFileImageName, ""), new MapFile(mapFileName));
// Load trace files
_traceFile1 = new TraceFile(trace1FileName, _imageFileNames, 1);
_traceFile1.CacheEntries();
_traceFile2 = new TraceFile(trace2FileName, _imageFileNames, 1);
_traceFile2.CacheEntries();
// Local function to retrieve function metadata for a given address
Dictionary <int, string> imageIdMapFileNameMapping = new Dictionary <int, string>();
Dictionary <int, Dictionary <ulong, FunctionNode> > nodes = new Dictionary <int, Dictionary <ulong, FunctionNode> >();
FunctionNode GetFunctionNodeForBranchEntryOperand(int imageId, string imageName, ulong instructionAddress)
{
// Try to retrieve name of function
string cleanedImageName = imageNameRegex.Replace(imageName, "");
if (!imageIdMapFileNameMapping.ContainsKey(imageId))
{
// Check whether map file exists
if (_mapFiles.ContainsKey(cleanedImageName.ToLower()))
{
imageIdMapFileNameMapping.Add(imageId, cleanedImageName.ToLower());
}
else
{
imageIdMapFileNameMapping.Add(imageId, null);
}
nodes.Add(imageId, new Dictionary <ulong, FunctionNode>());
nodes[imageId].Add(0, CreateFunctionNode(cleanedImageName));
}
string sourceMapFileName = imageIdMapFileNameMapping[imageId];
ulong sourceInstructionAddress = instructionAddress - 0x1000; // TODO hardcoded -> correct?
var(sourceFunctionAddress, sourceFunctionName) = (sourceMapFileName == null ? (0, "Unknown") : _mapFiles[sourceMapFileName].GetSymbolNameByAddress(sourceInstructionAddress));
// Retrieve source function node
if (!nodes[imageId].ContainsKey(sourceFunctionAddress))
{
nodes[imageId].Add(sourceFunctionAddress, CreateFunctionNode(cleanedImageName + " ! " + sourceFunctionName));
}
return(nodes[imageId][sourceFunctionAddress]);
};
double CreateEntryArrow(IEnumerator <TraceEntry> traceFileEnumerator, double y, int index, int traceFileId)
{
// Retrieve entry and check its type
traceFileEnumerator.MoveNext();
TraceEntry entry = traceFileEnumerator.Current;
if (entry.EntryType != TraceEntryTypes.Branch)
{
return(0);
}
// Draw if taken
BranchEntry branchEntry = (BranchEntry)entry;
if (branchEntry.Taken)
{
// Get function nodes of first entry
FunctionNode sourceFunctionNode1 = GetFunctionNodeForBranchEntryOperand(branchEntry.SourceImageId, branchEntry.SourceImageName, branchEntry.SourceInstructionAddress);
FunctionNode destinationFunctionNode1 = GetFunctionNodeForBranchEntryOperand(branchEntry.DestinationImageId, branchEntry.DestinationImageName, branchEntry.DestinationInstructionAddress);
// Add line
_entryArrows.Add(new EntryArrow(sourceFunctionNode1, destinationFunctionNode1, y, branchEntry, index, traceFileId));
return(EntryArrow.ArrowTipSideLength + 4);
}
return(0);
};
// Compare trace files and create diff
TraceFileDiff diff = new TraceFileDiff(_traceFile1, _traceFile2);
double nextEntryY = 60;
var traceFile1Enumerator = _traceFile1.Entries.GetEnumerator();
var traceFile2Enumerator = _traceFile2.Entries.GetEnumerator();
List <Tuple <double, double, Brush, string> > requestedDiffAreas = new List <Tuple <double, double, Brush, string> >();
foreach (var diffEntry in diff.RunDiff())
{
// Save Y offset of first entry
double baseY = nextEntryY;
// Draw branch entries for trace
int diffEntryCount1 = diffEntry.EndLine1 - diffEntry.StartLine1;
int diffEntryCount2 = diffEntry.EndLine2 - diffEntry.StartLine2;
int commonDiffEntryCount = Math.Min(diffEntryCount1, diffEntryCount2);
for (int i = 0; i < commonDiffEntryCount; ++i)
{
// Draw main entry
nextEntryY += CreateEntryArrow(traceFile1Enumerator, nextEntryY, diffEntry.StartLine1 + i, 1);
// If there are differences, draw corresponding other entry; move the enumerator anyway
if (!diffEntry.Equal)
{
nextEntryY += CreateEntryArrow(traceFile2Enumerator, nextEntryY, diffEntry.StartLine2 + i, 2);
}
else
{
traceFile2Enumerator.MoveNext();
}
}
// Draw remaining entries from longer sequence
if (diffEntryCount1 > commonDiffEntryCount)
{
for (int i = commonDiffEntryCount; i < diffEntryCount1; ++i)
{
nextEntryY += CreateEntryArrow(traceFile1Enumerator, nextEntryY, diffEntry.StartLine1 + i, 1);
}
}
else if (diffEntryCount2 > commonDiffEntryCount)
{
for (int i = commonDiffEntryCount; i < diffEntryCount2; ++i)
{
nextEntryY += CreateEntryArrow(traceFile2Enumerator, nextEntryY, diffEntry.StartLine2 + i, 2);
}
}
// Differences? => Schedule
if (!diffEntry.Equal)
{
// Make sure this diff area is visible even if it does not contain branch entries
requestedDiffAreas.Add(new Tuple <double, double, Brush, string>(baseY - 2, nextEntryY + 2, Brushes.LightPink, $"DIFF A: {diffEntry.StartLine1}-{diffEntry.EndLine1 - 1} vs. B: {diffEntry.StartLine2}-{diffEntry.EndLine2 - 1}"));
nextEntryY += 6;
}
}
// Show message if files match
if (!requestedDiffAreas.Any())
{
MessageBox.Show("The compared files match.", "Trace diff", MessageBoxButton.OK, MessageBoxImage.Information);
}
// Set draw panel dimensions
_renderPanel.Width = nextNodeX;
_renderPanel.Height = nextEntryY;
// Draw diff areas in the background
FunctionNode lastFunctionNode = _functionNodes.LastOrDefault();
if (lastFunctionNode != null)
{
foreach (var reqDiffArea in requestedDiffAreas)
{
// Create diff area
DiffArea diffArea = new DiffArea(lastFunctionNode.Position.X + lastFunctionNode.Width, reqDiffArea.Item2 - reqDiffArea.Item1, reqDiffArea.Item3, reqDiffArea.Item4, reqDiffArea.Item1);
Canvas.SetLeft(diffArea, 0);
Canvas.SetTop(diffArea, reqDiffArea.Item1);
_diffAreas.Add(diffArea);
_renderPanel.Children.Add(diffArea);
}
}
// Draw function nodes above the diff areas
foreach (var node in _functionNodes)
{
// Insert function node
node.GenerateVisual(nextEntryY);
_renderPanel.Children.Add(node);
Canvas.SetLeft(node, node.Position.X);
Canvas.SetTop(node, node.Position.Y);
// Create annotation node to display function name independent of scrolling
// The vertical position will be updated in another place
AnnotationElement annotationElement = new AnnotationElement(node.FunctionName);
Canvas.SetLeft(annotationElement, node.CenterXPosition - annotationElement.TopLeft.X + 2);
_functionNodeNameAnnotations.Add(annotationElement);
_renderPanel.Children.Add(annotationElement);
}
// Finally draw the entry arrows in the foreground
foreach (var entry in _entryArrows)
{
// Prepare coordinates
Canvas.SetLeft(entry, entry.From.CenterXPosition);
Canvas.SetTop(entry, entry.PositionY);
}
// Update render data
_renderPanel.LayoutTransform = new ScaleTransform(_zoom, _zoom);
UpdateRenderedElements();
}